<?php
/*
 *  $Id: WordLike.php 7490 2010-03-29 19:53:27Z jwage $
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.doctrine-project.org>.
 */

/**
 * Doctrine_Hook_WordLike
 *
 * @package     Doctrine
 * @subpackage  Hook
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link        www.doctrine-project.org
 * @since       1.0
 * @version     $Revision: 7490 $
 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
 */
class Doctrine_Hook_WordLike extends Doctrine_Hook_Parser_Complex
{
	/**
	 * parse
	 * Parses given field and field value to DQL condition
	 * and parameters. This method should always return
	 * prepared statement conditions (conditions that use
	 * placeholders instead of literal values).
	 *
	 * @param string $alias     component alias
	 * @param string $field     the field name
	 * @param mixed $value      the value of the field
	 * @return void
	 */
	public function parseSingle($alias, $field, $value)
	{
		if (strpos($value, "'") !== false) {
			$value = $this->_tokenizer->bracketTrim($value, "'", "'");

			$a[]   = $alias . '.' . $field . ' LIKE ?';
			$this->params[] = '%' . $value . '%';

		} else {
			$e2 = explode(' ',$value);

			foreach ($e2 as $v) {
				$v = trim($v);
				$a[] = $alias . '.' . $field . ' LIKE ?';
				$this->params[] = '%' . $v . '%';
			}
		}
		return implode(' OR ', $a);
	}
}
